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Old nippondenso compressor
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Theswedes
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Oct 17, 2017, 9:36 AM
Post #1 of 13
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Old nippondenso compressor
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Hi, I have a 1977 toyota pickup r 20 engine with an under dash AC run by a nippondenso compressor. I need to rebuild this entire system starting with the compressor but I can't find any information on it. I cant find a part number on the compressor itself so I don't even know where to begin buying rebuild kits. Any thoughts? Thanks
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Tom Greenleaf
Ultimate Carjunky
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Oct 17, 2017, 9:48 AM
Post #2 of 13
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Re: Old nippondenso compressor
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! If you really plan on doing "everything" and mean that why not look for another totally aftermarket set up that accommodates assorted applications and made for at least R134a from the beginning.
TMK These vehicles were all A/C ready and added after shipped to location if customer new wanted it looked and was OE - panel vents, all brackets for everything to fit precisely OE.
I'd look around for entire new set up that's universal enough and take the hit that it won't be terrific A/C but should do,
T
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Discretesignals
Ultimate Carjunky
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Oct 17, 2017, 11:13 AM
Post #3 of 13
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Re: Old nippondenso compressor
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10PA15C? That compressor was used extensively in the pickups and tacos. You have to transfer the top cover to the new compressor.
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
(This post was edited by Discretesignals on Oct 17, 2017, 11:14 AM)
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Hammer Time
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Oct 17, 2017, 1:02 PM
Post #4 of 13
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Re: Old nippondenso compressor
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I agree with Tom. You can't rebuild an aftermarket system. Replacement parts are simply not available with the exception of the compressor.
All the hoses are custom made on site and the under dash unit is pretty much one piece.
I would just look for another aftermarket kit if yours is that bad.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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Theswedes
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Oct 17, 2017, 4:04 PM
Post #5 of 13
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Re: Old nippondenso compressor
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Ok, Let me preface. The compressor is bad. But I wanted to replace as much of the system as possible. Since I can't do that, I would like to rebuild the compressor and see where that gets me. I have had shops price after market new systems and it's out of my price range, costing more then the car by mile.
I have hear rumors on some toyota sites that rebuild kits are available for this compressor. But so far i have been luckless.
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Hammer Time
Ultimate Carjunky
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Oct 17, 2017, 4:57 PM
Post #6 of 13
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Re: Old nippondenso compressor
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NO, DEFINITELY NOT!
You do not want to attempt to rebuild that compressor yourself or even buy a factory rebuilt. They are total junk and when they let go the second time, they trash your whole system. What you want to do now is buy a NEW compressor and a new condenser. I would suggest having a professional do this work as there are way too many ways for things to be done wrong and cause another catastrophic failure.
You also need to look into what caused the first compressor to fail. There is usually a cause that will still be there when the new one is installed.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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Tom Greenleaf
Ultimate Carjunky
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Oct 18, 2017, 12:02 AM
Post #7 of 13
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Re: Old nippondenso compressor
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Quote back a couple posts ">I have had shops price after market new systems and it's out of my price range, costing more then the car by mile.<"
Perhaps let's treat this from right to left now price is more important than this 41 year old truck when a truck was just a truck not a luxo thing was meant to work with not be comfortable or have the creature features of even 20 years later never mind now. This should have been sold with nothing, no power anything, no radio, no carpet. Yes for a heater. Possible to be sold still without many safety or emission controls required for a "car" as trucks were exempt from lots of things till much later.
What do you want out of this thing? It's cool that it's this old and not a rusted heap within 5-10 years from new never mind now.
A/C was not a strong consideration for this thing IMO but should have been designed with engine cooling system ready for the extra heat load that alone put on it.
There was only R-12 used in all motor vehicle's which wasn't leaky, didn't require efficient heat transfer items through the system could make up hose and use clamps new OE or aftermarket units to fit under dash or on hump on floor available just a memory now was marginal then when new never mind lack of R-12 available easily.
Next by most 1993 model years of anything was 134a which is leaky by type of gas/refrigerant so forget all but compressor isn't ready for another refrigerant unless already done perhaps a few times already - can't know how much of what has been done now long ago.
You wouldn't have a listed capacity for this just a sight glass to watch on or near a receiver dryer I think also would be full of desiccant to absorb the moisture was probably replaceable as it was destroyed some would blow a bag of that thru the system when failed blowing compressor was not reasonable to rebuild then never mind now IMO on that also.
What do you want out of this truck? Use it or have fun? If not budget for A/C this isn't for you. Guess is whole new might spike $5,000 and still be marginal but should be a small cab and better than nothing if that hot where it will be used.
Key question is what do you want to use this vehicle/truck (a real truck) for now? A/C was then 1/3rd the cost of the whole vehicle so most opted none at all if only to have all the item out of the way so you could WORK with these things not originally meant for daily driving also came along later. Your call and budget on what you want this for now?
Tom
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Theswedes
New User
Oct 18, 2017, 8:13 AM
Post #8 of 13
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Re: Old nippondenso compressor
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My angle on the AC system is this. Since it came with one and all the bits and pieces seem to be there, why not try and get it working. I have replaced most of the car and now I'm to the non essential systems. But, I'm not going to throw five grand at it.
I was hoping to get some advice on this idea. Maybe a compressor that might fit, or a rebuild kit that someone knows of or general advice from someone who has attempted this. But some advice so far is...do not attempt this yourself, its complicated. Which is valid but not really the point having a hobby rebuild car.
Anyway. Thank you all for your input. If I get anywhere with this project I'll check back in and give you an update.
J
(This post was edited by Theswedes on Oct 18, 2017, 8:46 AM)
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Tom Greenleaf
Ultimate Carjunky
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Oct 18, 2017, 8:47 AM
Post #9 of 13
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Re: Old nippondenso compressor
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Just understand that with the age now it's unknown both why this failed. Compressors fail as the result of something else, throw debris usually and burn up some to bits or NOT rebuildable despite they still do with a high failure rate. Then there's what refrigerant was in it last? Oils used for 134a wouldn't tolerate just sitting for ages and turn acidic if just left open. A/C is tons more than just a compressor it's a whole system to consider being this type under dash all the other items will be a problem to deal with or make up new.
Do know R-12 was not made new since 1993 by all complying NATO countries and is around just knowing it's real now difficult and cost now unknown to me it varies and most is recovered from whatever used it that was disposed of not just cars. I'm not thrilled with the chances of it being real so would go for 134a either way still made new and behavior well known.
Anything to do with motor vehicle A/C is just barely DIY friendly a trade of it's own just new would be ruling lots of problems out and an OE new set up near impossible other than compressor - there's the whole rest of it to understand or a total waste which is why is gets so costly,
T
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Hammer Time
Ultimate Carjunky
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Oct 18, 2017, 8:48 AM
Post #10 of 13
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Re: Old nippondenso compressor
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As you will probably find out the hard way, AC repairs are not compatible with "hobby work". Reliable AC repair requires extensive knowledge and experience to avoid the pitfalls that will destroy your system. I have made a living repairing the messes that DIYers have created trying to repair their own AC.
You have 3 resident experts at this site that have specialized in AC repair, two of which live and work in Florida so there is a vast collection of AC knowledge here and i believe all will agree that AC repair is not for the DIYer.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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Tom Greenleaf
Ultimate Carjunky
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Oct 18, 2017, 3:46 PM
Post #12 of 13
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Re: Old nippondenso compressor
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I'm not trying to beat this up any more than this is stressing that it's not so easy to know nor charge this thing "hobby" or not. The real trouble is that when you don't have this exactly right the first time in short time - minutes maybe you blow the system up again and worse off than not touching it! That's the trouble. Wrong is worse than not at all sets you backwards cost wise the new parts are ruined if every part of it.
If this thing is in superior shape so far you said you just didn't like the cost already quoted and understood. IDK what that cost was for what type of approach. I do know you aren't going to find parts (not just a compressor) for the rest so easy those companies came and went like the wind. J.C> Whitney, HeathKit another made kits for the floor hump type really suked when it worked it's best!
Likely good new is the vintage more vehicles of the type and cars had real vent windows, real floor vent not air thru the dash which is warmer than ambient air sure is dumb as long as you were moving not so bad. Owned personally a ton of vehicles up to ones where it was standard equipment much older than this you got a ton of $$ off to order without it! Hey - I'm the one "up north" where A/C is pretty much optional for some still don't care just use another vehicle on obnoxious days that works.
Good luck - whole intent by me and think us it to save you some really costly learning that it isn't so easy even for this type,
Tom
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Hammer Time
Ultimate Carjunky
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Oct 18, 2017, 4:37 PM
Post #13 of 13
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Re: Old nippondenso compressor
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If you only need the compressor and condenser, there should be plenty of universal condensers to match your dimensions and the compressor should be readily available but if you need anything under the dash, that's a different story.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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